| 摘要 |
An image display device includes: a signal generation part which outputs an image signal corresponding to a gradation level of a pixel which constitutes an image; a laser beam source which radiates a laser beam having intensity corresponding to the image signal; and a signal adjustment part which superposes a high-frequency signal to the image signal inputted to the laser beam source. The signal adjustment part superposes a high-frequency signal which has amplitude not less than a width of a kink region where an input-output characteristic of the laser beam source changes most steeply on the image signal.
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